A mysterious virus has been killing increasing number of piglets - which has pushed the price of pork skyrocketing to historic levels, as bacon lovers get worried about the supply of their favorite food.

The Porcine Epidemic Diarrhea virus (PEDV) is not new - it was first identified in England in 1971 - but it has not been found in the United States ... until now. Though only about 400 cases of death due to PEDV have been officially confirmed by the United States Department of Agriculture, it is estimated that the toll has already been in the hundreds of thousands. With mortality rate of as high as 100 percent in early-weaned pigs, it's no wonder that pig farmers are worried.